Clostridium is a group of facultative anaerobic bacteria in the intestinal tract and is closely related to many diseases. By producing toxins and gas, Clostridium difficile and Clostridium perfringens can induce diarrhea. Clostridium butyricum, Faecalibacterium prausnitzii and other probiotics, Clostridium toxin vaccine, antibiotics, fecal bacteria transplantation, and other means are the main methods which are clinically used to inhibit the proliferation of harmful Clostridium and restore the balance of intestinal flora. In this paper, we will...